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Finding the Fourth Proportional to 90,571.26, 135,863.13 and 37,927.74

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Solution

The fourth proportional to 90,571.26, 135,863.13 and 37,927.74 is: 56,894.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,571.26 : 135,863.13 = 37,927.74 : x
  2. Step 2: Convert to fraction form
    90,571.26/135,863.13 = 37,927.74/x
  3. Step 3: Cross multiply
    90,571.26x = 135,863.13 × 37,927.74
  4. Step 4: Simplify right side
    90,571.26x = 5,152,981,470.23
  5. Step 5: Solve for x
    x = 5,152,981,470.23/90,571.26
  6. Step 6: Final answer
    x = 56,894.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.